Valvoline advanced full synthetic 14.97+tax@walmart +other levels of oil $14.97

https://www.valvoline.com/promotions
Up to $15 off (which is for the $40 modern engine level oil) and $10 off for the advanced full synthetic oil. Limit two rebates per household.
You can get a jug of oil from Walmart for 24.97 and get a $10 rebate.
Advance has the advanced full synthetic for 32.99 – $10 rebate with a purolator boss oil filter